Meet researchers who are racing against time to get a better understanding of the friendly, giant whale shark; how science developed for the Hubble Space Telescope has come down to sea level to provide tools for identifying individual whale sharks.

Off the coast of Washington, volunteers assist a biologist in an important survey of the Orcinus Orca killer whales.

For Officer Steve Moore the streets are full of danger but Steve knows that his best friend and canine partner, Argus has his back and will sacrifice his own life for Steve's if duty calls. A harsh reality that this beat cop never wants to confront.

Local shelters in Florida do all they can to save abandoned dogs from its fourth hurricane in recent months.

A Kenyan ranger searches for his missing secret-agent lioness; a Chinese shar-pei model heads to a glitzy New York audition; two greyhound blood donors save a doggy damsel in distress.